Programming Guide

CHUMP Reference Guide
22
Lb
Name
Lock block
Description
For Protocol A tags, runs a Lock Block command. If the “d:”
sequence is specified, the SUID flag is set and SUID bytes are
sent, regardless of the configuration variable settings (see Chapter
3 - Reader Configuration). If the “d:” sequence is not specified,
the tag must first be selected (see Ts command).
For Protocol B tags, triggers a LOCK command (opcode 0x0f).
The <tag ID> is required for B tags.
Type
Tag command with reply
Format
}Lb,a:xx[,d:<tag ID>];<FCS><CRLF>
}Lb,a:xx[,d:<tag ID>]!<CRLF>
where:
a:xx is the block address.
d:<tag ID> is the serial ID of requested tag.
Return Message
{A[,e:xx]*;<FCS><CRLF>